Stone-finishing machine



A. HERNANDEZ STONE FINISHING MACHINE Aug. 11, 1925.

Filed Nov. 11 1924 2 Sheets-Shut 1 o YN ATTORN EY WITNISS:

Filed Nov. 11 1924 2 Sheets-Shoot 2 A'II'TORNEY WITNESS:

Patented Aug. 11, 19225.

UNIT En STATES ARSENIO HERNANDEZ, OF IDUNMOBE, PENNSYLVANIA.

STONE-FINISHING MACHINE.

Application filed November 11, 1924. Serial No. 749,297.

To aZZ whom zt may concern:

Be it known that I, ARsENIo HERNANDEZ, a subject of the King of Spain,residing at Dunmore, in the county of Lackawanna and State ofPennsylvania, have invented new and useful Improvements inStone-Finishing Machines, of which the following is a specification.

This invention relates to improvements in stone finishing machines, thepresent invention being an improvement over that filed by me on May 5,1924, Serial No. 711,210.

The general object of this invention is to improve the construction ofthe form of machine by providing means for facilitating its operationand for making the cutting blades removable so that the blades can beresharpened or new ones substituted for the old ones.

This invention also consists in certain other features of constructionand in the combination and arrangement of the several parts, to behereinafter fully described, illustrated in the accompanying drawingsand specifically pointed out in the appended claim.

In describing my invention in detail, reference will be had to theaccompanying drawings wherein like characters denote like orcorresponding parts throughout the several views, and in which Figure 1is a plan view of the invention.

Figure 2 is a view of the cutter roller.

Figure 3 is a section on line 33 of Figure 2.

Figure 4 is a section on line H of Figure 2.

Figure 5 is a fragmentary view of one of the cutters.

Figure 6 is a fragmentary view of'the cutter roller with teeth removed.

Referring to Figure 1, 1 indicates a track with which the wheel of atruck 2 engages, the truck being moved along the track by means of a nutmember on the truck engaging a threaded shaft 3 carried by the supports4 which are placed between the rails of the track. This truck isarranged to support a block of stone and on its forward movement thetruck will pass under a cutter device 5 which will dress the uppersurface of the block. This device is supported on the uprights 6 and itis driven from a shaft 7 through the belt 8 and pulleys 9, the shaft 7being supported on the up rights 10. This shaft 7 also drives the screwshaft 3 by the belt 11 and the pulleys 12. An idle pulley 13 is arrangedon the shaft 7 alongside the pulley 12 thereon and a manually operatedbelt shifter 14 is arranged to place the belt on either the pulley 12 orthe pulley 13. When the apparatus is to be operated the belt is placedon the pulley 12 and when the operation is to cease the belt is shiftedupon the loose pulley 13. A hand wheel 15 is fastened to the shaft 3 sothat the truck can be returned to its starting point by manual power.

The cutter device comprises a roller 16 which has reduced ends 17 forengaging the bearings in the uprights 6. This roller is provided withannular grooves 17 adjacent the ends of its major part and this majorpart is also provided with longitudinally extending grooves 18 which aresecantly arranged and are designed to receive the bases of the cuttingstrips or blades 19. These blades or strips are provided with notches 20adjacent their ends which register with the annular grooves 17 when theblades are in position so that a pair of split rings 21 can be placed inthe grooves 17 and notches 20 to hold the blades in position. The endsof each ring are bolted together, as shown'at 22.

From the foregoing it will be seen that I have provided means wherebythe cutting blades or strips can be easily removed and sharpened orreplaced by new ones.

This device will finish stones which have been roughly finished bymanual labor or by machinery and the cutters on the cutting device canbe kept sharp.

It is thought from the foregoing description that the advantages andnovel features of my invention will be readily apparent.

I desire it to be understood that I may make changes in the constructionand in the combination and arrangement of the several parts, providedthat such changes fall within the scope of the appended claim.

What I claim is In a stone dressing machine, a cutting roller havinglongitudinally extending grooves therein and annular grooves adjacentits ends, cutting blades fitting in the longitudinally extending groovesand having notches in their ends for registering with the annulargrooves, split rings engaging the annular grooves and the notches forremovably holding the blades in position and means for fastening theends of each ring together.

In testimony whereof I aflix my sigmature.

